The diamond drill. (Crystal Falls, Iron County, Mich.) 1887-1996, 1887-12-17

tere~ts"o Hem~.
The writer visited the Groveland. an
Iron county mine, hast week. Many Of
the readers of The DIAMOND DRII.L have
no doubt heard of the Groveland group
of mines, but a description 81 these pro-
pertics and the work now heing done by
the Grovcland Iron Mininglto., will of
great interest To ell persons at>llll ac-
uuainfed with mines or their workings.
This company's property as at present
constituted, IL in iact a consolidation oi
three distinct mining properties. known
AZ the East 6royeland, Groveand md
West Groveland, held under option from
the Lake Superior Ship Canal, Railway
* Iron Co., and embraces the south hall
of the southwest quarter 81 section
thirty-two: the northeast quarter and
the southeast quarter of the northwest
quarter and the northeast qunrtcrofth the
southwest quarter of section thifty-one,
al in township forty-two north, nre
twenty-nine west, thus making the totnl
length Of the territory
ONE NILE AND QUARTER
running east aud west with the trend of
the vein 81 ore fnnd from quarter 10 u
hall mile .fN.dth. a range ofhills, some
threceor fDIir.hQidrsi feet IN Height, rpns,
thr.Slgh the ,n;petty from east 70
tnti II is midway kpon the sopu'
THAT the principal S<-elopmer
property has been ~ edc az
opening that the wlis Nv
first describe. In con
Richard Lowry, a prss,
competent to handle in
vantngcous manner 81 Ian
the editor mounted a hois
at the tapping of bell WI
feet above the ground nns
on huge derrick To thee yft~
shaft Of the Grovcland mine, where
remained suspended in niid-air uut
bell WIS again sounded and thctb
with its human freight commenced
descent which wax increased and
end of a few seconds the news
and his accommodating guide W.
AT THE BOTTOM OF THE sn
This shaft IL the largest one
prrty and is now down u
sevcnty-hve feet and well titflD,sU,., .i.zssrr
ming eight by twelve feet Inside. Ner.
chantnhle one il cncolnteft4I at depth
Of about thirty feet from tn surface. At
about this ccpth a drift Iats been driven
a considerable distance a. the easi, the
result OF which demcAstrated 10 the
operators that the ore<in quantity WIS
below and accordingly the main shaft, or
No. 1 was put downt0 the depth above
mentioned. Froui the bottom uf No.
shaft u drift was carricd north oi wert,
and at a distance 81 sixty-two feet
breasted i'm mixture OF marble and
granite, which may eventually prove TO
bc the north Wall the cause assigned for
its appearance at this point is that a
swell or elbow shaped bunch 81 the ma
terial made out from its regular course,
a. the ore il clean up TO the point where
il Joins the supposed wall The manage
ment will go TO near the shaft aud
START ANOTHER DRIFT
and carry il directly west. In an oppos-
lie direction from the other side of the
shaft another drift has been driven due
east a distnnce of sixty-fouritpt, showing
the length thus ftr developed to he l2j
feet all in clean ore. At the end of the
cast drift some stopeing hats been done
and tram track i- soon to be put IN,
10 be in readiness for such time az active
miningis To Recommended. AcfOsscnt has
been carried north tiIirty-two feet. breast
ing In "A mnrbly material the ore holding
ig) TO its standard Of eNcelcncv to the
end In this crtbsS-cut, ten feet from the
shaft, a Wine forty feet deep and all in
good ore has been put down A croSs-cut
has been cnrried south to adistance that
shows the vein at this depth Co be 10 less
than sixty-iiye feet in width. The main
shaft win be, during the winter. pnt down
an additional sixty-fivc feet, Tive iect of
which will be used AS a sump until such
time as it becomes necessary 10 lower the
shaft deeper. The
MARBLY MATERIAL
ON the north H. supposed to be the foot
wall. although there In considerable
difference of opinion ns to itand IN fact
there il no real certainty about it's being
the wall IL may prove 10 bc only horse
of rock that will work out and show the
vein to be much wider than is now sup
posed-such a thing IL among the prOha-
hiitics The hanging wall has not yet
becu found at ALL but the work 10 the
south gives Indications that would lead
60 the belief that the wall h. nearat hand.
Test pitting has shown that this wall j.
composed Of brown schist and slate. All
above the present level will bcstopcd out,
making rooms little over fifty feet high.
The next level will, 81 course, he stopped
the same IA the one above and drifting
and cross-cntting carried ON In the some
manner. The derrick now In use will be
done away with aud a cage put In No.
shalt which will permit of a greater
amount uf ore being hoisted. Some two
hundred feet little to the
NORTH AND EAST
ofthe main shaft, work H. now IN progress
on shaft of similar size, which has nt-
tnincd n depth oi over forty feet, some
fifteen of which ledgcd in ore of splendid
quality. IL h the intention 10 connect
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